<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="../node_modules/d3/dist/d3.js"></script>
<script src="../node_modules/@hpcc-js/wasm/dist/graphviz.umd.js" type="javascript/worker"></script>
<script src="../build/d3-graphviz.js"></script>
<div id="graph" style="text-align: center;"></div>
<script>


var dotIndex = 0;
var graphviz = d3.select("#graph").graphviz()
    .transition(function () {
        return d3.transition("graphviz")
            .ease(d3.easeLinear)
            .delay(40)
            .duration(2000);
    })
    .logEvents(true)
    .on("initEnd", render);

function render() {
    var dotLines = dots[dotIndex];
    var dot = dotLines.join('');
    graphviz
        .dot(dot)
        .render()
        .on("end", function () {
            render();
        })
        .zoom(true);

    dotIndex = (dotIndex + 1) % dots.length;
}

var dots = [
    [
        'digraph  {',
        '    node [style="filled"]',
        '    a [fillcolor="#d62728"]',
        '    b [fillcolor="#1f77b4"]',
        '    a -> b',
        '}'
    ],
    [
        'digraph  {',
        '    node [style="filled"]',
        '    a [fillcolor="#d62728"]',
        '    c [fillcolor="#2ca02c"]',
        '    b [fillcolor="#1f77b4"]',
        '    a -> b',
        '    a -> c',
        '}'
    ],
    [
        'digraph  {',
        '    node [style="filled"]',
        '    a [fillcolor="#d62728"]',
        '    c [fillcolor="#2ca02c"]',
        '    b [fillcolor="#1f77b4"]',
        '    a -> b',
        '    a -> c',
        '    b -> c',
        '}'
    ],
    [
        'digraph  {',
        '    node [style="filled"]',
        '    a [fillcolor="#d62728"]',
        '    c [fillcolor="#2ca02c"]',
        '    b [fillcolor="#1f77b4"]',
        '    a -> b',
        '    b -> c',
        '}'
    ],
];

</script>
